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* Use CallbackVH in AliasSetTracker to avoid getting stuck withDan Gohman2009-07-301-4/+20
| | | | | | | dangling Value*s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77623 91177308-0d34-0410-b5e6-96231b3b80d8
* s/DebugInfoEnumerator/DebugInfoFinder/gDevang Patel2009-07-301-31/+31
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* walk DbgRegionStartInst and DbgRegionEndInstDevang Patel2009-07-301-2/+20
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* Equal SCEVs of a subscript give rise to dependence.Andreas Bolka2009-07-301-1/+11
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* Eliminate a few unused-variable warningsDouglas Gregor2009-07-292-3/+0
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* Move types back to the 2.5 API.Owen Anderson2009-07-294-11/+11
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* Move ConstantExpr to 2.5 API.Owen Anderson2009-07-295-42/+41
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* Skeleton for pairwise subscript testing.Andreas Bolka2009-07-291-3/+45
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* Return ConstantVector to 2.5 API.Owen Anderson2009-07-281-1/+1
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* Add DebugInfoEnumerator to collect debug info.Devang Patel2009-07-281-0/+117
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* Simplify LDA-internal interface.Andreas Bolka2009-07-281-12/+8
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* Add LDA statistics.Andreas Bolka2009-07-281-0/+14
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* Minor factoring, naming and formatting cleanups.Andreas Bolka2009-07-281-24/+29
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* Change ConstantArray to 2.5 API.Owen Anderson2009-07-281-2/+2
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* Teach instcombine to respect and preserve inbounds. Add inboundsDan Gohman2009-07-281-1/+3
| | | | | | | to a few tests where it is required for the expected transformation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77290 91177308-0d34-0410-b5e6-96231b3b80d8
* Move ConstantStruct back to 2.5 API.Owen Anderson2009-07-271-20/+10
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* Move ConstantFP construction back to the 2.5-ish API.Owen Anderson2009-07-271-6/+6
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* Fix wording in comments.Dan Gohman2009-07-271-1/+1
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* Remove Value::getName{Start,End}, the last of the old Name APIs.Daniel Dunbar2009-07-263-8/+9
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* Remove Value::getNameLenDaniel Dunbar2009-07-263-91/+50
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* SCEV objects are no longer reference-counted.Dan Gohman2009-07-251-3/+2
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* When attempting to sign-extend an addrec by interpretingDan Gohman2009-07-251-2/+2
| | | | | | | | the step value as unsigned, the start value and the addrec itself still need to be treated as signed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77078 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert DOUT to DEBUG.Andreas Bolka2009-07-251-5/+5
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* Teach ScalarEvolution to make use of no-overflow flags whenDan Gohman2009-07-251-2/+37
| | | | | | | analyzing add recurrences. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77034 91177308-0d34-0410-b5e6-96231b3b80d8
* Instead of eagerly creating new SCEVs to replace all SCEVs that areDan Gohman2009-07-251-103/+56
| | | | | | | | | | | | | affected after a PHI node has been analyzed, just remove affected SCEVs from the Scalars map, so that they'll be (lazily) recreated as needed. This avoids creating SCEV objects that aren't actually needed. Also, rewrite the associated def-use walking code to be non-recursive and to continue traversing past Instructions that don't have an entry in the Scalars map. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77032 91177308-0d34-0410-b5e6-96231b3b80d8
* Make AliasAnalysis and related classes useDan Gohman2009-07-255-39/+43
| | | | | | | getAnalysisIfAvailable<TargetData>(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77028 91177308-0d34-0410-b5e6-96231b3b80d8
* More migration to raw_ostream, the water has dried up around the iostream hole.Daniel Dunbar2009-07-254-38/+38
| | | | | | | | | | | - Some clients which used DOUT have moved to DEBUG. We are deprecating the "magic" DOUT behavior which avoided calling printing functions when the statement was disabled. In addition to being unnecessary magic, it had the downside of leaving code in -Asserts builds, and of hiding potentially unnecessary computations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77019 91177308-0d34-0410-b5e6-96231b3b80d8
* Forward-declare raw_ostream.Andreas Bolka2009-07-241-0/+2
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* Revert the ConstantInt constructors back to their 2.5 forms where possible, ↵Owen Anderson2009-07-245-66/+66
| | | | | | thanks to contexts-on-types. More to come. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77011 91177308-0d34-0410-b5e6-96231b3b80d8
* Move to raw_ostream.Daniel Dunbar2009-07-241-33/+34
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* Switch to getNameStr().Daniel Dunbar2009-07-241-6/+6
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* Fix whitespace.Dan Gohman2009-07-241-1/+1
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* Convert StringMap to using StringRef for its APIs.Daniel Dunbar2009-07-231-1/+1
| | | | | | | | | | | | | - Yay for '-'s and simplifications! - I kept StringMap::GetOrCreateValue for compatibility purposes, this can eventually go away. Likewise the StringMapEntry Create functions still follow the old style. - NIFC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76888 91177308-0d34-0410-b5e6-96231b3b80d8
* Cache dependence computation using FoldingSet.Andreas Bolka2009-07-231-23/+65
| | | | | | | | | This introduces an LDA-internal DependencePair class. The intention is, that this is a place where dependence testers can store various results such as SCEVs describing conflicting iterations, breaking conditions, distance/direction vectors, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76877 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor cosmetics: indentation, formatting, naming.Andreas Bolka2009-07-231-18/+18
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* Fix thinko.Devang Patel2009-07-221-1/+1
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* Add replaceAllUsesWith() to FE replace debug info constructs while building ↵Devang Patel2009-07-221-0/+12
| | | | | | complex types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76765 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of the Pass+Context magic.Owen Anderson2009-07-227-137/+140
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* Replace the original ad-hoc code for determining whether (v pred w) impliesDan Gohman2009-07-211-104/+197
| | | | | | | | | (x pred y) with more thorough code that does more complete canonicalization before resorting to range checks. This helps it find more cases where the canonicalized expressions match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76671 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename getConstantInt{True|False} to get{True|False} at Chris' behest.Owen Anderson2009-07-211-1/+1
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* Make the range calculations for addrecs to be more conservative,Dan Gohman2009-07-211-3/+9
| | | | | | | | as they aren't currently prepared to handle complicated overflow cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76524 91177308-0d34-0410-b5e6-96231b3b80d8
* Whitespace cleanups.Dan Gohman2009-07-211-3/+3
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* Minor code simplification.Dan Gohman2009-07-211-1/+1
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* Add a comment to clarify why there isn't any code in this spot.Dan Gohman2009-07-201-0/+2
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* Remove the code that tried to evaluate whether (A pred B) is knownDan Gohman2009-07-201-42/+0
| | | | | | | | by determining if (B pred (B-A)) is known, as it doesn't handle overflow correctly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76504 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor code simplification.Dan Gohman2009-07-201-1/+1
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* The upper argument of ConstantRange is exclusive, not inclusive.Dan Gohman2009-07-201-1/+3
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* Update this comment.Dan Gohman2009-07-201-7/+5
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* Revert the addition of hasNoPointerOverflow to GEPOperator.Dan Gohman2009-07-202-16/+6
| | | | | | | | | | | | | Getelementptrs that are defined to wrap are virtually useless to optimization, and getelementptrs that are undefined on any kind of overflow are too restrictive -- it's difficult to ensure that all intermediate addresses are within bounds. I'm going to take a different approach. Remove a few optimizations that depended on this flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76437 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace intersectWith with maximalIntersectWith. The latter guarantees thatNick Lewycky2009-07-181-5/+4
| | | | | | | | | all values belonging to the intersection will belong to the resulting range. The former was inconsistent about that point (either way is fine, just pick one.) This is part of PR4545. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76289 91177308-0d34-0410-b5e6-96231b3b80d8
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